Zach Stagers

If you’d like to deploy multiple U-SQL procedures without having to open each one in Visual Studio and submit the job to Data Lake Analytics manually, here’s a PowerShell script which you can point at a folder location containing your .USQL files to loop through them and submit them for you.

This method relies on the Login-AzureRmAccount command with a service principal, which you can learn more about here.

Parameter Configuration

Where these various GUID’s can be found within the Azure portal is liable to change, but at time of writing I have provided a path to follow to find each of them.

$azureAccountName – This is the Application Id of your Enterprise Application, which can be found by navigating to Azure Active Directory > Enterprise Applications > All Applications > Selecting your application > Properties > Application Id.

$azurePassword – This is the secret key of your Enterprise Application, and would have been generated during application registration. If you’ve created your application, but have not generated a secret key, you can do so by navigating to: Enterprise Applications > New Application > Application You’re Developing > OK, take me to App Registration > Change the drop down from ‘My Apps’ to ‘All Apps’ (may not be required) > Select your application > Settings > Keys > Fill in the details and click save. Note the important message about the key only being available to copy until before navigating away from the page!

$psTenantID – From within the Azure Portal, go to Azure Active Directory, open the Properties blade, and copy the ‘Directory ID’.

$adla – The name of the data lake analytics resource you’re deploying to.

$fileLocation – The file location on your local machine which contains the USQL scripts you wish to deploy. Note the “\*.usql” on the end in the example, this is a wildcard search for all files ending in .usql.

Permissions

The service principal needs to be given the following permissions to successfully execute against the lake:

· Owner of the Data Lake Analytics resource you’re deploying to. This is configured via the Access Control blade.

· Owner of the Data Lake Store resource associated to the Analytics resource you’re deploying to. This is configured via the Access Control blade.

· Read, Write, and Execute permissions against the sub-folders within the Data Lake Store. Ensure you select ‘This folder and all children’ and ‘An access permission entry and a default permission entry’. This is configured by entering the Data Lake Store, selecting Data Explorer, then Access.